Key to Temnothorax schaumii species group workers

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This worker key is based on: Mackay, W. P. 2000. A review of the New World ants of the subgenus Myrafant, (genus Leptothorax) (Hymenoptera: Formicidae). Sociobiology. 36:265-444.

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Temnothorax schaumii casent0104047 head 1.jpg
Temnothorax schaumii casent0104047 profile 1.jpg
  • Propodeal armature well developed with long, acute spines . . . . . 2

2

return to couplet #1

  • Worker unknown; eye of female small, round diameter about equal in length to length from base of mandible to anterior edge of eye; propodeal spines long (length 0.15mm), diameter about equal along entire length; Washington, D. C. . . . . . Temnothorax minutissimus
  • Eye of female large, oblong, diameter greater than length between base of mandible and anterior edge of eye; propodeal spines thick at bases, narrowed towards tip: distributed throughout eastern United States . . . . . 3

3

return to couplet #2

Temnothorax bradleyi casent0104011 head 1.jpg
Temnothorax bradleyi casent0104011 profile 1.jpg
  • Head with fine striae, surface between striae finely sculptured, and forming reticulations with striae . . . . . 4

4

(return to couplet #3

Temnothorax curvispinosus casent0003234 head 1.jpg
Temnothorax curvispinosus casent0003234 profile 1.jpg
  • Propodeal spines shorter, length about equal to distance between bases . . . . . Temnothorax ambiguus
Temnothorax-ambiguus-MCZ001H.jpg
Temnothorax-ambiguus-MCZ001L.jpg